Better driving? There's an app for that. If you have a BMW, at least.

BMW iPhone app puts a full featured data logger in your pocket.

Data recorders can be invaluable tools for driver improvement on the racetrack. If you own a late-model BMW equipped with the BMW apps option, you can now get access to all your car's crucial
data via the free M Laptimer app.

Developed in California by BMW, the M Laptimer records GPS data, throttle position, brake pressure, steering angle and a number of other functions directly
from the car's computer and organizes it in an easy to interpret graphic format.

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You'll be able to scroll through your laps, analyze your performance and compare it with data from a friend, instructor, or social media contacts. So, if you've got a newer Bimmer and an iPhone, there's no excuse not to start crunching your own numbers. The app is available for free on the iTunes App Store